Ecosse ES1 Spirit

For $3.6 million, it's what you can't see that makes the Ecosse ES1 Spirit a Superbike: 250 mph, carbon fibre everything, custom tailored, state of the art everywhere. Total factory support, spare parts forever, and training with a champion superbiker.

"Engineers Richard Glover, Andy le Fleming and Richard Tyrrell represent a range of motorsports skills," Cycle World wrote. "They saw two major areasâ€”weight and frontal areaâ€”in which significant advances could be made. Here is a short bill of particulars: 265 pounds, 200-plus horsepower, 50 percent of the drag of modern Superbikes. The plan is to build 10 track-day examples and test public response. As of now, the bike exists only virtually in SolidWorks, a 3D CAD software system, though extensive FEA and CFD computer analyses have been performed."